K 1500 Truck 4WD V8-393 6.5L DSL Turbo VIN S (1996)
Starter Motor: Description and Operation
Fig. 8 Exploded View Of Delco-Remy 28MT Starter Motor.
The 28 MT series starter motor has the solenoid shift lever mechanism and the solenoid plunger enclosed in the drive housing to protect them from
exposure to road dirt, icing conditions and splash. It has an extruded field frame and an overrunning clutch type drive. The overrunning roller type clutch
is operated by a solenoid switch mounted to a flange on the drive housing. This is a permanent magnet gear reduction starter that incorporates a center
bearing.
The solenoid is attached to the drive end housing by two screws. The cover can be removed to inspect the contacts and contact disc, but the switch is
serviced as an assembly only.
Most motors of this type have graphite and oil impregnated bronze bearings which ordinarily require no added lubrication except at time of overhaul
when a few drops of light engine oil should be placed on each bearing before reassembly.
